This is just a quick sketch, and not really an infographic, based on a photograph I took at a Diablos Rojos game. Each point where the triangles connect is where a defensive player was stood.
And below, the same idea, just animated. I took a little bit of video footage at a Diablos Rojos-Broncos Mexican League game, and drew lines over the top of every 12 frames of film to show the movement of the defensive players on one play, and then made an animated GIF of the lines. The play in question is an inning-ending ground ball between short and third, fielded by the short stop.